A:
Positive:
1 x 38730237 x 55328911 x 35209377 x 50299179 x 21637281 x 137831253 x 30911967 x 1969
Negative:
-1 x -3873023-7 x -553289-11 x -352093-77 x -50299-179 x -21637-281 x -13783-1253 x -3091-1967 x -1969
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 3,873,023, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 3,873,023 | |
| -1 | -3,873,023 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,873,023.
Example:
1 x 3,873,023 = 3,873,023
and
-1 x -3,873,023 = 3,873,023
Notice both answers equal 3,873,023
With that explanation out of the way, let's continue. Next, we take the number 3,873,023 and divide it by 2:
3,873,023 ÷ 2 = 1,936,511.5
If the quotient is a whole number, then 2 and 1,936,511.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 3,873,023 | |
| -1 | -3,873,023 |
Now, we try dividing 3,873,023 by 3:
3,873,023 ÷ 3 = 1,291,007.6667
If the quotient is a whole number, then 3 and 1,291,007.6667 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 3,873,023 | |
| -1 | -3,873,023 |
Let's try dividing by 4:
3,873,023 ÷ 4 = 968,255.75
If the quotient is a whole number, then 4 and 968,255.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 3,873,023 | |
| -1 | 3,873,023 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 179 | 281 | 1,253 | 1,967 | 1,969 | 3,091 | 13,783 | 21,637 | 50,299 | 352,093 | 553,289 | 3,873,023 |
| -1 | -7 | -11 | -77 | -179 | -281 | -1,253 | -1,967 | -1,969 | -3,091 | -13,783 | -21,637 | -50,299 | -352,093 | -553,289 | -3,873,023 |
Here are some more numbers to try:
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